Molar Tooth Sign

Imaging brain A finding on transverse CT and MRI images acquired at the midbrain in patients with Joubert syndrome. The term molar tooth refers to the characteristic appearance of an enlarged and horizontally directed tubular structure on each side of the midline emerging from the midbrain, which is due to an absent decussation of the superior cerebellar peduncular fiber tracts
Imaging urinary bladder A descriptive term referring to the appearance of perivesicular contrast on contrast-enhanced CT in extraperitoneal bladder rupture